Nonrefillable container



Oct. 9, 1934. H. H. METZGAR NONREFILLABLE CONTAINER Filed Nov. 7, 1932Patented Oct. 9, 1934 UNITED STATES NONREFILLABLE CONTAINER 7 Harry H.Metzgar, Smethport, Pa., assignor of one-half to Franklin L.

Holmes, Smethport, Pa.

Application November 7,1932, 'Serial No. 641,621'

Claims.

This invention relates to non-refillable containers such as cans used totransport, store and dispense high grade oils.

An object is to provide a strong, durable and inexpensive sealing devicewhich will render high grade oil cans pilier proof.

A further object is to provide acan having a valve controlled pipethrough which the contents of the can may be pumped and which is lockedfast to the can head by novel locking fingers'carried'by a sleeveintegral with thehead and which lodge against a shoulder formed on thepipe.

With the above and other objects in view the invention consists incertain novel details of construction and combinations of partshereinafter fully described and claimed, it being understood thatvarious modifications may be resorted to within the scope of theappended claims without departing from the spirit or sacrificing any 6of the advantages of the invention.

In the accompanying drawing forming part of this specification,

Figure 1 is a vertical section through an oil can equipped with myinvention,

Figure 2 is an enlarged detail section of the pipe and its connectionswith the can head, and

Figure 3 is a cross section taken on the line 3-3 of Figure 2.

Referring now to the drawing in which like characters of referencedesignate similar parts in the various views, designates a containerwhich may be of any type but which for the purpose of one example of theapplication of the invention, is shown as a metal can or barrel of theusual and well known type used to store, ship and dispense lubricatingoils.

In carrying out the invention I provide in the can head 11 a countersunkseat 12 the wall 13 of which is preferably of octagon shape, as shown inFigure 3, and the bottom of which is annular in contour to provide aledge 14. The seat is formed with a downwardly extending annuler skirt15 at the inner end of the ledge and the skirt terminates in a bottomclosure 16 which slopes downwardly, as shown. A sleeve 1'? is formedintegral with the bottom closure 16 and is of sufficient diameter tosnugly receive a suction pipe 18 through which the contents of the canmay be pumped. The sleeve is provided with pairs of slits at preferablythree points around the circumference and the metal between each pair ofslits is bent outwardly and thence terminally bent inwardly to provide aspring dog 19. There are three of these dogs preferably disposed aroundthe circumference of the sleeve. Preferably the head 11 of the -c an isfabricated with the above described seat ,12, skirt 15, bottom closure16 sleeve 17 and spring dogs 19. v r

A reducer 20, having a-flange'21 corresponding to the shape of the seat12 isforced snugly into said seat until the flange rests upon the ledge14. The shape of the wall 13 of the seat and of the flange 21 of thereducer preventrotati'on ofthe reducer so that when once applied ,it ispermanently mounted as an integral part'of the can head. The reducer isprovided with screw threads 22. Y

A plug nut 23 of standard type is threaded into the reducer toseal thecan and preferablya gasket 24 isapplied between the flange of the plugnut and the flange 22 of thereducer to seal the can and render it leakproof.

In further carrying out the invention the pipe 18 is provided at the topwith an outwardly extending flange 25 which terminates at the edge in arib 26. The flange and rib are adapted to compress a washer 2'7 ofpacking material against the sloping bottom closure 16 of the can headand seal the pipe leak proof to the can head. Below the flange 25 and atsuch a distance as to receive the bent ends of the spring dogs 19, thepipe is bent inwardly to provide a shoulder 23 and above the shoulder istapered so that the pipe presents a substantially invertedfrusto-conical wall 29 above said shoulder. This wall providessuflicient room for the extreme ends of the spring dogs to accuratelyrest upon the shoulder. It will be consequently observed that anysurreptitious attempt to withdraw the pipe 18 from the can head will befrustrated by the shoulder 28 and spring dogs 19 which coact inpreventing retrograde movement of the pipe out of the. can head whilefreely permitting entry of the pipe through the v sleeve 17 duringassembly of the pipe with the can head.

A ball check valve 30 is mounted on a perforated seat 31 disposed in thebottom of the pipe 18. A helical spring 32 is seated on the ball andbears at the top end against an annular abutment 33 formed byconstricting the pipe wall, as shown. As usual the ball lifts duringsuction of a pump applied to the reducer 20 after removal of the plugnut 23 and permits the contents of the can to be dispensed. However, anyattempt to refill the can through the pipe will be frustrated by seatingof the -projecting downwardly therefrom,

From the above description it is thought that the construction andoperation of my invention will be fully understood without furtherexplanation.

What is claimed is:

1. The combination with a container having a head, of an angulardepression in the head forming a seat, a sleeve carried by said seat, areducer having an angular portion fitted in said seat, a spring dogcarried by said sleeve, and a check valve controlled pipe in said sleevedisposed concentric with the reducer and having an annular shoulderagainst which said dog lodges and prevents removal of the pipe throughthe reducer.

2. The combination with a container having a head, of a sleeve integralwith the head and a check valve controlled pipe disposed in the sleeveand terminating at the top in a flange, a gasket on the'pipe between theflange and the sleeve, 'a spring'dog carried by the sleeve, and anannular' shoulder carried by the pipe seating the spring dog andpreventing removal of the pipe from the container head. f3. ,Inacontainer, a head having a. seat provided with an angular wall andledge, a skirt extendingdownward from'the ledge, a sleeve carried 'byand disposed concentric with the skirt, a spring dog on the sleeve, aninteriorly threaded reducer fitting snugly in said skirt and having anangular flange fitting snugly against .the angular wall of said seat, acheck valve controlled pipe within the sleeve, and an annular shoulderon said pipe receiving said dog and pre venting removal of the pipe-fromsaid sleeve.

4. In a container, a head having a seat provided with an angular walland a ledge, a skirt extending downward from the ledge, a downwardlysloping closure extending from the bottom of the skirt, a sleeveextending downward from the closure and having a spaced pair of slits,the material between the slits being bent outwardly and terminally bentinwardly to providea spring dog, a reducer having an vangular flangeseated on said ledge and snugly engaging the angular wall of the seat, aplug nut threaded into said reducer, a check valve controlled pipedisposed concentric in the sleeve and terminating at the top in a flangedisposed below the bottom of said nut, and a packing gasket confinedbeteween the flange and said bottom closure, the wall of the pipe beingdirected inwardly to provide an annular shoulder receiving the bent endof said dog and preventing removal of the pipe from the sleeve, the wallof the pipe above the shoulder being substantially invertedfrusto-cOnical inshape to provide sufiicient room. for the, dog totightly engage said seat.

5. The combination with a container having 100 a head, of a check valvecontrolled pipe depending from the head and having a portion thereofbent inwardly to form a stop shoulder,

a sleeve depending from the head and fitting snugly around the upper endof the pipe, said 105 sleeve being provided'with spaced incisionsdefining intermediate spring dogs having inwardly directed terminalsadapted to bear against the shoulder and lock the pipe against removalfrom the container. 110

' HARRY H. METZGAR. [L- 5.]

